As far as I am aware, you can call RSC & give them the watch number & they can say whether the watch is LoS & whether it's been serviced. But they will also say you might be looking at a cloned watch & take no responsibility if you purchase it.

Rolex USA requires that you send it to them for verification... If it has been reported lost or stolen, then they will start the process for recovery by the reporting authority...

They do not tell you over the phone...........if they did that they would never recover any lost or stolen property.

But by not telling you over the phone, they do nothing to curb the trade of stolen watches.

Imagine if you could get on the phone or go to a website and see the official list of stolen watches, instantly, any time of day or night. Every legit buyer would do it. The only remaining market for stolen Rolexes would be criminals and people who hadn't heard of the service.